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Comments:
<0> don't know, I don't do MFC stuff
<1> so how u would be doing it ?
<0> why would I want to do this? "get stuff from user into an array, and display it back"
<1> well the whole thing is the use of GUI
<1> not what it does.
<2> heh, eric clapton for music when on hold, interesting
<3> this channel doesn't care about black people
<4> Huh... Right.
<5> uh
<5> this is a programming channel, moron
<4> That's why we always ask people about the color of their skin before answering them.
<3> then how come no one here is celebrating martin luther king day, regardless of what channel this is
<5> why should I be celebrating?
<3> cause MLK is a damn ICON!
<4> What's Martin Luther King Day?
<6> MLKDay on #C++ #xxxp***wordz
<5> do you celebrate hannuhak?
<6> At least we know how you're celebrating
<5> chanukah
<5> whatever
<5> if you don't, i guess you hate jews
<3> rdragon: dont turn this on to me
<3> we're specifically talking about whites who don't care about black people
<5> no we're not, only you are
<6> I guess I hate.
<5> heh
<5> anyway, I am celebrating: I don't have cl***es today
<6> I'm working from home.
<6> Oh, wait...
<6> Never mind.
<5> hehe
<5> how do you like working from home?
<7> your office 'looks' like home?
<6> I dig it.
<6> I get to watch the squirrels cavorting in the back yard, I can make coffee that doesn't taste like swill, I can have a tasty snack without having to bang on a machine.
<6> And I don't get interrupted.
<8> 'C++ And Related Development
<8> wat is #
<8> ?
<9> remoteint: wtf?
<10> new to IRC possibly
<10> or new to trolling
<0> I thought I'd banned that ***hole the last time he made that comment
<5> i think the ban list is near-full, he may have gotten shuffled around
<0> MY ban list
<9> he's come back as a different ***hole
<5> ah
<9> like reincarnation
<0> looks like he got disconnected the same time I did
<11> Hi, Say I have a 2d grid (with integer positions i.e. x = 0,1,2.. y=0,1,2...) and I have objects that sit on that grid (only one per co-ordinate pair). I want a container to store these objects and then quickly check the neighbouring locations. I was thinking I should use a map sorting on x and y but I'm not sure how
<11> say I have struct pos { int x; int y }
<11> std::map<pos,object> mygrid;
<11> ?
<5> a map? why not use a 2d structure like a vector of vectors, or boost::multi_array
<5> is this, by chance, a tile-based game?
<11> yes maybe I'm looking at the wrong kind of container
<11> not quite.. it's a block construction program
<11> where you put together a bigger objects with sub blocks
<5> tetris ?
<11> but you can only connect some bits together on certain edges
<11> More of a design tool based on component blocks
<11> you could make tetris like shapes I guess :P
<11> If I have a vector of vectors then in the worst case (e.g. a line along one axis) I'll have one vector per block right?
<5> well, a 2d-array sort of structure would do nice, I believe... unless these grids are abnormally large or something
<11> and the best case I'll have one vector for all blocks?
<5> one vector per block? no... one vector per row
<5> plus one
<11> yes but if they're all in one row then I'll have one vector
<12> for a really big, really sparse grid.
<11> if they're in the perpendicular row I'll have lots of vectors with one block in easily
<5> Solamente - yeah, I figured if it had to be like a sparse array a map might do ok
<5> AxeMan - what?
<6> For any reasonable size, a 2d vector is better.
<5> vector< vector< Tile > > grid;
<13> is it guaranteed by the standard that predicates for STL algorithms are not required to have default constructors ? Would STL implementation of find_if which constructs a predicate with a default constructor be standard confirming? Is this stated anywhere in the standard?
<11> but if I define the < operator for my position cl*** then I can use a map seamlesly
<11> so I could have std::map<posCl***,objects>
<5> AxeMan if you're stuck on your solution, then what do you want from us here?
<11> and then I can easily extend it to 3D by using a 3d pos Object
<5> vector<vector<vector<Tile> > > grid_3d;
<11> I wasn't sure if maps or vectors were the way to go
<11> for quickly finding the neighbouring cells
<5> specifically for that operations, vectors for sure
<5> operation
<5> grid[y][x] grid[y-1][x-1] ...
<11> ah I'm not really giving you a piece of information that's critical... sparsely populated and construction in real time
<5> how big is it?
<5> a million rows by a million columns?
<11> worst case is going to be probably 100x100
<5> then what's the problem?
<5> that's virtually tiny
<11> so I can get away with a vector with null pointers to the object
<11> okay sounds reasonable :)
<11> sorry not very experience with the STL so I'm trying to figure out when to use what
<5> maybe you need a C++ then
<5> er, C++ book
<11> mm I'm ready The C++ Standard Library
<11> *reading
<11> It's more a design consideration
<5> no, that's an implementation consideration
<11> sorry I mean that by design consideration
<5> your design is a grid no matter what
<11> For the simple 1D case... if I have a block at 0 and a block at 99 then I have to have 1..98 as null? then I could go if(line[1]!=0) { // Check Neighbour }
<14> guys is there a direct way to use C++ string member functions doing case _insensitvie_ operations ?
<14> I've found a way to write my own char_traits<char> methods .. but is there a more direct way
<13> Darwish: can you use boost string algorithms? Why do you need member functions?
<0> Darwish why would you want a case insensitive string?
<14> no, doing case insensetive operations with funcs like string::find () and so on ..
<0> Meyers discusses that at length and concludes that it should be left to the compare functions
<0> NOT as a part of the string
<14> vawjrwrk, u mean write my own outside compare functions .. ?
<0> Darwish well the "inside" ones don't ask for a comparison criteria
<0> and he suggests that doing basic_string<char, yourchartraits<char> > leads to complications
<14> mm, and where do these compare funcs exist ??
<5> in the ether
<0> global functions
<14> mm, and how to let a function like find () search in insinsitive way ?
<0> you don't
<0> why do you think it would be useful?
<14> Actually Iam just solving some exercises from Thinking in C++ vol2 (not homework)
<14> !voll
<14> vawjrwrk, what do u mean by voll ?
<0> volume 1
<0> and it's not voll, it's vol1
<14> Books are always argumentative subject .. thoug books like effictive, exceptional C++ no one can deny them
<0> http://rudbek.com/books.html
<0> I like all of those
<14> Iam just a newb .. They are in my plans .. Espicially I am goin to write a real project soon
<0> so what does Bruce want you to do that you think making string::finc() work w/ case insensitivity will help
<15> Darwish like a clock
<15> With nice professional looking arms ticking in sync with the computer clock
<14> His questions is dummy anyway ..
<14> But the book itself has moved me from a newb to somehow more advanced level
<0> IMO, AC++ would have done much better
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